Wrench.



J. B. GATHRIGHT.

WRENCH.

APPLICATION FILED FEB. 12. 19!].

1,243,506. v I Patented 0ct.16,19 17 v attain JOSIAH B. GATHRIGHT, F LOUISVILLE, KENTUCKY.

WRENCH.

Application filed February 12, 1917.

To all whom it may concern:

Be it known that l. Josmn B. GATH- nien'r, citizen of the United States, residing at Louisville, in the county of Jef ferson and State of Kentucky, have invented certain new and useful Improvements in renches, of which the following is a specification. I

This invention relates to improvements in wrenches and consists in certain novel features of construction and correlations of parts substantially as hereinafter described and particularly pointed out in the claims.

T he most important object of the invention is to provide a wrench of strong and durable construction which may be most economically manufactured.

This object, and others which will be apparent to those familiar with the present invention and the art to which it relates, is well accomplished by the construction illus trated in the accompanying drawings, which exemplifies an arrangement adapted to nuts, and in which drawings:

Figure 1 is a side view of a wrench constructed in accordance with my invention;

Fig. 2 is a longitudinal section through the same;

Fig. 8 is an end view thereof;

Fig. l is a cross section on the line 4at of Fig. 2;

Fig. 5 is a detail view of the body portion, partially formed;

Fig. 6 is a view of said body portion completely formed;

Fig. 7 is a view similar to Fig. 6, but showing a body of slightly different crossscctioned shape; and

Fig. 8 is an end view of a wrench having a body of the shape shown in Fig. 7.

Similar characters of reference denote corresponding parts in the several views.

Referring to the construction shown in Figs. 16, inclusive: A denotes the body por tion of the wrench. This body portion is formed of a metal tube or pipe of suitable cross-sectional shape and size and at one end is slit longitudinally, as shown at a, Fig. 5, said longitudinal slit intersectingat its rear end a transverse slit (2. The portions of the bodv lying between the transverse slit 0. and the front end of the body and on opposite sides of the slit a are bent to form two upstanding substantially par allel spaced flanges 10, 11 which extend lon- Spceification of Letters Patent.

latented (lot. 16, 1917.

Serial in. 148,073.

gitudinally ofthe body and are disposed at one end thereof.

. B denotes the fixed jaw. The lower end 12 of this jaw has a cross section which con forms to the cross section of the body at the front end of the latter and substantially fills the same. Its intermediate portion 13 extends into and substantially fills the space between the flanges and 11 at the front extremity of the body. This jaw thus closes and stiilens one end of the body. It is rigidly secured to the latter in any approved way, as by the rivets 13 for example.

The movable jaw is marked C. The crosssectional shape of the lower and intermediate portions 1%, 15 of this jaw conform to. the cross-sectional shape of the portion of the body having the flanges 10 and 11 hereinbefore referred to, these portions of the jaw extending into the body and between the flanges and being substantially in contact therewith, as shown in Fig. 4:.

This jaw is threaded upon an adjusting shaft D which extends rotatably through a bearing block E and is suitably held against longitudinal movement. The shaft D may have a threaded connection with the block E, or not, as desired. The latter being preferred, is shown in the drawings. In either case the block is held against movement longitudinally of the body. The hearing bloclrE closes that end of the space between the flanges 10, 11 which is opposite the end closed by the intermediate portion 13 of the stationary jaw B. It is suitably connected to the flanges 10, 11 as by the projecting pin 16, 16, for example. The shaft D has a head 17 which bears against the outer end of the block E and is, preferably, suitably roughened for convenience in turning the threaded shaft D. Any suitable anchor may be provided to hold the shaft D against endwise movement with respect to block E. For example a pin 19 may be provided which passes through the fixed jaw B and engages a groove 20 formed in the shaft D. It will be understood that when said shaft is turned in one direction or the other, the movable jaw C will be caused to advance toward or recede from the stationary jaw B to grasp or release a nut or the like and to accommodate nuts or the like of different sizes, and that in its movements it will be effectively guided by the flanges 10, ll.

It is preferred in practice to provide one or both of the upstanding flanges, 10, 11 with a scale, as shown at 18, Fig. 1, corresponding to different sizesot nuts or the like, for convenience in adjusting the movable jaw to engage the same by eliminating the necessity of guesswork in the prelimilindrical section flattened at the u )oer side wiere the upstanding flanges are located, and in Figs. 7 and 8 I have illustrated a body, marked A, which is substantially elliptical at the handle end and at its opposite end has its flattened portions, marked 10 and 11 inthese figures, substantially in the vertical planes of the opposite sides of the handle portion. As the jaws conform to the shape of the parts of the body within which they are located, it will be apparent that the jaws for the first named term will be substantially cylindrical at their lower parts and'flattened and of less thickness at their upper parts, as shown in connection with the jaws B and O in Figs. 3 and i, while the jaws for the other exemplified form will be flat and of substantially the same thickness from top to bottom, as indicated in connection withthe stationary jaw,

marked B, in Fig. 8.

While I have illustrated, for exemplary purposes, the structure when embodied as a nut wrench, it will be apparent that the impro en ents constituting the present invention maybe embodied as a pipe wrench, suchembo'diment involving merely certain changes in details well understood by those skilled in the art, and hence not illustrated herein.

Having thus described the invention, what neeaeoe I believe to be new and desire to secure by Letters latent, and what I therefore claim, is:

l. A wrench comprising a hollow body having integral upstanding spaced longitudinal flanges at one end, a stationary aw secured between the'fianges, a bearing block secured between the flanges at the inner ends thereof, a screw mounted to turn in the bearing block, and a movable jaw mounted to travel between the flanges, and to which jaw the screw is connected, and an operat ing member on said cw 2. 3i wrench C01 ipis. ng a body portion iormed of tubing which is split laterally "and longitudinally adjacent one end and the split portions bent outwardly to form a pair of spaced flanges which extend outwardly beyond the body portion, a fixed aw secured in position between the flanges at the outer end of the body portion, a bearing block secured between the flanges at the inner ends or" said flanges, the fixed jaw and the bearing block serving to maintain the flanges in spaced relation to each other, a movable jawvguided between the outwardly extending flanges, an operating screw journaled in'the bearing block and connected to the movable jaw, and an operating head on said screw rearwardly of the bearing block.

3. A wrench comprising a hollow body having integral upstanding, spaced, longi udhuil flanges at one end, a stationary aw lined between the flange at one end thereof, a movable jaw guided between the thin both the tired and movable jaws extending outwardly beyond the flanges and inwardly into the body portion and con ii'crniing to the shape of the latter, a caring block between the flanges at the rear ends of the latter, and a screw j ournaled in the bear ing block and engaged with the movable jaw.

in testimony whereof I my signature.

JOSIAH B. GATHRIGHT.

Copies of this patent may he obtained for five cents each, by addressing the boimnissio'ner of Patents, Washington, ID. 8. 

